کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
521208 867758 2008 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Locally corrected semi-Lagrangian methods for Stokes flow with moving elastic interfaces
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Locally corrected semi-Lagrangian methods for Stokes flow with moving elastic interfaces
چکیده انگلیسی

We present a new method for computing two-dimensional Stokes flow with moving interfaces that respond elastically to stretching. The interface is moved by semi-Lagrangian contouring: a distance function is introduced on a tree of cells near the interface, transported by a semi-Lagrangian time step and then used to contour the new interface. The velocity field in a periodic box is calculated as a potential integral resulting from interfacial and body forces, using a technique based on Ewald summation with analytically derived local corrections. The interfacial stretching is found from a surprisingly natural formula. A test problem with an exact solution is constructed and used to verify the speed, accuracy and robustness of the approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 227, Issue 8, 1 April 2008, Pages 3896–3920
نویسندگان
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